3 papers
math.PR2026
From Cannings model to Brownian motion conditioned on local time profile
Xiaodan Li, Chengshi Wang, Yushu Zheng
We study the scaling limits of genealogical trees arising from Cannings models. Under suitable moment conditions, we show that the rescaled contour and height functions converge to…
math.PR2025
Stochastic Flows and Marked Stable Processes
Elie Aïdékon, Quan Shi, Chengshi Wang
We construct a random partition of the space-time plane using two coupled stochastic squared Bessel flows, whose parameters differ by .…
math.PR2024
Meeting of squared Bessel flow lines and application to the skew Brownian motion
Elie Aïdékon, Chengshi Wang, Yaolin Yu
We study the meeting level between squared Bessel (BESQ) flow lines of different dimensions, and show that it gives rise to a jump Markov process. We apply these results to the ske…